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<h2><span class="refentrytitle">Function template adaptive_sort</span></h2>
<p>boost::movelib::adaptive_sort</p>
</div>
<h2 class="refsynopsisdiv-title">Synopsis</h2>
<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../move/reference.html#doxygen.adaptive__sort_8hpp" title="Header &lt;boost/move/algo/adaptive_sort.hpp&gt;">boost/move/algo/adaptive_sort.hpp</a>&gt;

</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> RandIt<span class="special">,</span> <span class="keyword">typename</span> RandRawIt<span class="special">,</span> <span class="keyword">typename</span> Compare<span class="special">&gt;</span> 
  <span class="keyword">void</span> <span class="identifier">adaptive_sort</span><span class="special">(</span><span class="identifier">RandIt</span> first<span class="special">,</span> <span class="identifier">RandIt</span> last<span class="special">,</span> <span class="identifier">Compare</span> comp<span class="special">,</span> 
                     <span class="identifier">RandRawIt</span> uninitialized<span class="special">,</span> 
                     <span class="keyword">typename</span> <span class="identifier">iter_size</span><span class="special">&lt;</span> <span class="identifier">RandIt</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span> uninitialized_len<span class="special">)</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.23.20.4.3.4"></a><h2>Description</h2>
<p><span class="bold"><strong>Effects</strong></span>: Sorts the elements in the range [first, last) in ascending order according to comparison functor "comp". The sort is stable (order of equal elements is guaranteed to be preserved). Performance is improved if additional raw storage is provided.</p>
<p><span class="bold"><strong>Requires</strong></span>:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>RandIt must meet the requirements of ValueSwappable and RandomAccessIterator.</p></li>
<li class="listitem"><p>The type of dereferenced RandIt must meet the requirements of MoveAssignable and MoveConstructible.</p></li>
</ul></div>
<p>
</p>
<p><span class="bold"><strong>Parameters</strong></span>:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>first, last: the range of elements to sort</p></li>
<li class="listitem"><p>comp: comparison function object which returns true if the first argument is is ordered before the second.</p></li>
<li class="listitem"><p>uninitialized, uninitialized_len: raw storage starting on "uninitialized", able to hold "uninitialized_len" elements of type iterator_traits&lt;RandIt&gt;::value_type. Maximum performance is achieved when uninitialized_len is ceil(std::distance(first, last)/2).</p></li>
</ul></div>
<p>
</p>
<p><span class="bold"><strong>Throws</strong></span>: If comp throws or the move constructor, move assignment or swap of the type of dereferenced RandIt throws.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Always K x O(Nxlog(N)) comparisons and move assignments/constructors/swaps. Comparisons are close to minimum even with no additional memory. Constant factor for data movement is minimized when uninitialized_len is ceil(std::distance(first, last)/2). Pretty good enough performance is achieved when ceil(sqrt(std::distance(first, last)))*2.</p>
<p><span class="bold"><strong>Caution</strong></span>: Experimental implementation, not production-ready. </p>
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<div class="copyright-footer">Copyright © 2008-2024 Ion Gaztanaga<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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